Ink level control

Details Ink level control Ink level control

1980-04-21

1984-10-30

Fisher, J. Reed

Printing

Inkers

Fountains

73290V, B41F 3102

Patent

active

044794339

ABSTRACT:
An ink level control for a printing press is disclosed having an ultrasonic ink level sensor to receive an echo signal representative of the level of the ink in the ink fountain. A control is provided whereby the ink level is maintained at a desired operating level and conditions of excessively low and high ink levels are also detected by the sensor. An echo loss detection network is provided to warn the operator and inhibit ink feeds. The control is designed to prevent overflow of the ink fountain.

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patent: 2813538 (1957-11-01), Genova
patent: 3025793 (1962-03-01), Vischulis
patent: 3373052 (1968-03-01), Rode
patent: 3407398 (1968-10-01), Stearn
patent: 3848529 (1974-11-01), Gegenheimer
patent: 3985030 (1976-10-01), Charlton
patent: 4000650 (1977-01-01), Snyder
patent: 4010683 (1977-03-01), Lambert et al.
patent: 4090407 (1978-05-01), Shuler
patent: 4121094 (1978-10-01), Divito et al.
patent: 4144517 (1979-03-01), Baumoel
Instrumentation Technology, "Ultrasonic Instruments for Level and Flow", Sep. 1974, pp. 49-59.
"Sensall System 8100 Ultrasonic Continuous Liquid Level Transmitter", Envirotech Brochure; National Sonics, 250 Marcus Boulevard, Hauppauge, New York 11787.

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